package com.cn.wanxi.servlet.user;

import com.alibaba.fastjson.JSONObject;
import com.cn.wanxi.model.UserModel;
import com.cn.wanxi.service.IUserService;
import com.cn.wanxi.service.impl.UserServletImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet("/back/user/findById")
public class UserFindByIdServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("UTF-8");
        resp.setCharacterEncoding("UTF-8");
        String idString = req.getParameter("id");
//        3.调用服务逻辑层
        Integer id = idString == null ? 0 : Integer.parseInt(idString);
        UserModel userModel = new UserModel();
        userModel.setId(id);
        IUserService iUserService = new UserServletImpl();
        UserModel model = iUserService.findById(id);
        //        5.将数据返回给前端,必须以json的格式传递
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("model",model);
        resp.getWriter().println(jsonObject);
    }
}
